5.3

CVE-2025-48985: vercel ai Improper Input Validation

CVSS: 5.3v3.1MediumAnalyzed
AliasesGHSA-rwvc-j5jr-mgvhCGA-2j98-fxc5-mfwwCGA-3r3m-rjxh-jjqx
Published 07-11-2025Last modified 01-12-2025
Open JSON

Vulnerability summary

CVE-2025-48985 is a medium (CVSS 5.3) Improper Input Validation vulnerability in vercel ai. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 19.7% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.28%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-QRXC-26QF-C7F4

Timeline

  1. 07-11-2025
    PublishedVulnerability first disclosed.
  2. 01-12-2025
    Last modifiedVulnerability information updated.

Description

A vulnerability in Vercel’s AI SDK has been fixed in versions 5.0.52, 5.1.0-beta.9, and 6.0.0-beta. This issue may have allowed users to bypass filetype whitelists when uploading files. All users are encouraged to upgrade. More details: https://vercel.com/changelog/cve-2025-48985-input-validation-bypass-on-ai-sdk

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

+0.02 pp

From 0.27% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard16 products
  • kibana-8.17All versions (No fix recorded)
  • kibana-8.17-bitnamiAll versions (No fix recorded)
  • kibana-8.17-iamguardedAll versions (No fix recorded)
  • kibana-8.18All versions (No fix recorded)
  • kibana-8.18-bitnamiAll versions (No fix recorded)
Vercel2 products
  • ai< 5.0.52 | 5.1.0:beta0 | 5.1.0:beta1 | 5.1.0:beta2 | 5.1.0:beta3 | 5.1.0:beta4 | 5.1.0:beta5 | 5.1.0:beta6 | 5.1.0:beta7 | 5.1.0:beta8
  • ai sdk5.0.51 | 5.1.0-beta.8
Npm1 product
  • ai< 5.0.52 | ≥ 5.1.0-beta.0, < 5.1.0-beta.9

3 vendors · 19 products

References

6 links